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Finding the Fourth Proportional to 6,619.59, 9,119.61 and 4,626.99

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Solution

The fourth proportional to 6,619.59, 9,119.61 and 4,626.99 is: 6,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.59 : 9,119.61 = 4,626.99 : x
  2. Step 2: Convert to fraction form
    6,619.59/9,119.61 = 4,626.99/x
  3. Step 3: Cross multiply
    6,619.59x = 9,119.61 × 4,626.99
  4. Step 4: Simplify right side
    6,619.59x = 42,196,344.27
  5. Step 5: Solve for x
    x = 42,196,344.27/6,619.59
  6. Step 6: Final answer
    x = 6,374.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.